of brooklyn



(3. WALKER June 2 I931 SCALE Filed Nov. 14, 192'? IN VEN TOR. h W BY AQ AQWW W A TTORNEYS.

which will always v A. still further object is that of Patenteddune 2, 1931 UNITED STATES PATENT OFF-ICE.

GEORGE WALKER, OI BROOKLYN, NEW YORK, ASSIGNOB TO THE JACOBS BROTHERS 00.,

' INC, 01 BROOKLYN, NEW YORK, A CORPORATION OINIW Yoax SCALE 7 Application filed Iovember 14, 1927. Serial Io. 883,051.

This invention relates to an improvedscale of the over and under weight type.

It is an object of the invention to provide an improved device of this character, tend to assume a neutral or zero position, and whichjdoes not have to be disposed in an accurately predetermined horizontal plane in order that it may function with accuracy.

A further object of the invention is that of constructing a scale in which the parts may be readily adjusted, either to compensate for shocks or wear, or at the time the scale is set upat the factory.

providing a scale, the parts of which will be relatively few in number, and individually sim 1e and rugged in construction, aside from t e fact that they may be assembled readily and adjusted to co-operate perfectly by relatively unskilled labor, so as to furnisha scale capable of being sold at a relatively low figure, and which will function efliciently over long periods of time, free from mechanical difli- 5 culties.

With these and other objects in mind, reference is had to the attached sheets of drawings, which show one practical embodiment of the invention, and in which:

Fig. 1 is a front elevation of such a scale; Fig. 2 1s an edge view,

and partially a transverse section;

Fig. 3 is a perspective view of the collar portion of the beam; and

Fig. 4 is an enlarged sectional view, showing in detail the relationship of certain parts of the scale.

In these views the numeral 5 indicates the scale base, from which a standard 6 extends upwardly, this standard mounting a housing 7, within which a pointer 8 may oscillate, the latter preferably registering with a graduated dial or index 9 which may be viewed through an opening in the upper end of the housing 7 7. Mounted for rocking movement upon pivots supported by yoke arms 10 is the scale beam 11 which, as shown, may mount at its opposite ends pans 12, it being understood that the latter ma nected within the base by means'o a check the supporting member be condash-pot (not shown) may be connected with the beam in order to dampen the movements thereof and that, althou h according to the preferred embodiment 'o the invention the scale may generally include the parts specified, these parts may be modified in construction and arrangement inany desired manner.- The central portion of the beam 11 preferably takes the form of a collar 15, with WhlCh the pivots or knife edges of the beam are associated. As shown in Fig. 3, this collar preferably has an inwardly extending lug 16 which projects within the housing 7 through a slot formed in the body of the latter. The yoke 10 has an extension 17 in line with the post 10 and which is positioned within the base of the housing 7,- this extension mounting a supporting member 18, preferably by having the latter formed with a screw-threaded stem 19-ex-- tending into a correspondin ly threaded bore 20, the stem being capa le of being locked by means of a nut 21. The supporting' member 18 is likewise formed wlth a screw-threaded bore which, in the embodiment illustrated, mounts the shank of a bolt 22; the head of which serves to clamp upon a pair of plates 23, each formed with a slot 24 forv passage of the bolt shank, the slot being, in each instance, of such length that the plates may be shifted. Interposed between these plates is one end of a spring strip 25, this strip preferably having an opening'for the accommodation of the shank of the bolt 22, and the body of such strip extending horizontally towards the collar 15 at a point which, as shown, is diametrically opposite the base of the lug 16. At this point the collar is formed with a pair of spaced ears 26, each tapped and threaded to receive setscrews 27, the ends of which are-preferably pointed in order that their frictional, en- 100 gagement with the strip may be correcomprising a mounting member normally spondingly reducedn holding said spring against movement.

I In operation it will be perceived that, 3. A scale including a rockingly mounted with the parts set up in the manner aforepan-supporting beam, a base for. su porting described, the beam will, at all times, tend the same, a pointer rigidly secure against 79 e to assume a position at which the pointer 8 movement with respect to said beam and a registers with the zero graduation of the dial spring connected at one end to said beam 9. This will be caused by the action of the and at its opposite end to said base one of spring strip 25, and the operation of the the endconnections of said spring including scale will not be afiected detrimentally even an element having sliding contact with its if it is not positioned to rest in a true horiface.

zontal plane. A 4:. A scale including a rockingly mounted If now, an object is to be weighed, and a beam, a base for supportingthe same, a colweight of a predetermined value is placed lar portion forming a part of the same,

v upon one of the pans and the object has been an arm extending inwardly from said po'rositioned upon the other, the ointer which tion, a pointer secured to said arm and held is attached to the lug 16 (as s own in Fig. against movement with respect thereto and 3) will register the amount of over or una spring having one of its ends connected to der weight, or will indicate if a true balsaid beam and its opposite end being conance is in efiect. As the beam oscillates, a nected to said base. sliding contact is efiected between the inner 5. A scale'including a rockingly mounted ends of the set-screws 27 and thesurfaces beam, a base for supporting the same,-a

of the strip 25, this serving as a connection spring connected to said base and beam, one between the beam and the strip. of the connections for said spring compris- Obviously, if adjustment of the parts is ing a member adjustable transversely of the necestary, this may be ach'eved readily, in body of said spring.

the first instance, b projecting and retract- 6. A scale including a rockingly mounted ing the set-screws 2%, in order that the beam beam, a base for supporting the same, a may, in its position of rest, extend propspring connected to said base and beam, one

erly. In the second instance, adjustment of the connections for said spring com rismay be achieved .by moving the supporting ing a member adjustable transversely o the member 18 with respect to the extension 17 body of said spring, and tensioning means upon which it is mounted. In the third incarried bysaid member and in engagement stance, the efiective tension of the strip may with said spring, said means being shiftable be varied by loosening the bolt 22, and prolongitudinally of the sprin jecting or retracting the plates 23 along the 7 A'scale including a rociingly mounted strlp. beam, a base for supporting the same, a col- Thus, among others, the several objects of l r portion forming a part of said beam, a the invention are accomplished, but it is to pair of spaced lips extending from said colbe understood that numerous changes in lar portion, a spring having one of its ends structure and rearrangement of the parts secured to said base, its opposite end extendmay be resorted to, without in any case deing between said lips and means associated parting from the spirit of the invention. with said lips and in slidable contact with Having .described my invention, what 1 881(1 pring f r o0nnecting the latter with claim as new and desire to secure by Letters Said beam 1m p t i 8. A scale including a base, a standard ex- 1. A scale of the even-balance type and tendmg from Smd Y s a beam including, in combination, a rockingly rockingly mounted by 331d yoke: P

- beam, a base for supporting, the tending from said yoke andwithin said i said connecting means including an element end the standard, and a check rod sup orted from same, a spring extending in a horizontal Said post and connected to Sal beam plane, means forconnecting one end of said strip with said base means for connecting the gi s ig i g gii gi g gxg fi opposite end thereof with Said beam one of which is connected to'said base, the opposite reof being connected to said beam 12( having sllding C n 11th the face of and means movable longitudinally of said said strip. strip for varying the effective tension of 2. A scale including a rockingly mounted the same. beam, a base for supporting the same, a 10. Ascale includingarockingly mounted horizontally extending spring strip having beam, a base, a flexion strip, one end of 12 connection with both said base and beam, which is movably connected with said beam said connection in one instance comprising a and means for varying the effective tension pair of spaced elements in sliding contact of said strip and coupling the other end of with said spring and between which the the same with said base.

same is interposed, and in the second instance 11. A scale including a rockingly mounted beam, a flexion strip,

the same to the. mounting member for saidbeam, a base, a flexion strip, means for mov- 5 with 'said connecting means and movable longitudinally of the strip for varying the effective tension thereof.

12. A scale including a rockingly mounted beam, a base for supporting the same, a horizontally extending flexion strip having one of its ends movably connected to said beam' means for securing the opposite end thereo to said base and means associated with said securing means to vary the effective tension of said strip.

13. A scale including a rockingly mounted beam, a strip to be flexed laterally of itself, members contacting with opposite faces of the strip and means associated with said strip and said members for connecting one of the same with the beam-mounting member and the other with the beam. PF

14. A scale including a rockingly mounted beam, a strip to be flexed laterally of itself, members contacting with opposite faces of the strip, means for-securing said strip to the beam-mounting member and means for connecting said contact members to move with said beam.

15. A scale including a rockingly mounted beam, a stri to be flexed laterally of itself, members frictionally contacting with opposite faces of the stnp and means associated with said strip and said members for connecting one of the same with the beam mounting member and the other with the beam, the ends of said members having sliding contact with said strip.

16. A scale including a rockin ly mounted beam, a strip to be flexed laterally of itself, members frictionally contacting with opposite faces of the strip, and means associated with said strip and said members for connecting one of the same with the beammounting member and the other with the beam, the ends of said members having sliding contact with said strip and being pointed to reduce friction.

17. A scale including a rockingly mounted beam, a flexion strip, means for'cennectin the same to the mounting member for said beam and a pair of pins connected with said beam to move therewith and engaging between them the opposite faces of said strip.

18. A scaleincluding a rockingly mounted beam, a flexion strip, means for connectin the same to the mounting member for said beam, means for varying the resistance to flexion offered by said strip and a pair of pins connected with said beam to move therewith and'engaging between them the opposite faces of said strip.

beam, a pair of pins connected with said .beam to move therewith and engaging between them the opposite faces of said strip and a re istering mechanism, one of the elements 0? which is connected to move proportionately to the movement of the beam and the other being connected to the beammounting member.

20. A scale including a beam, a base for rockingly mounting said beam, 9. registering mechanism connected to said beam,-and a horizontally extending spring having one of its ends connected to said base, its opposite end being connected to said beam, one of the end connections of said spring including an element having sliding contact along the spring face.

21. A scale of the even-balance type including a beam, a base for rockingly su portingsaid beam at a point substantial y intermediate its ends, a registering mechanism connected to said beam to operate in a plane substantially inline with the point of mounting of said beam, and a horizontally extending flexion stri having one of its ends connected to said base, its opposite end being connected to said beam.

In testimony whereof I aflix my signature.

GEORGE WALKER.

19. A scale including a rockingly mounted i means for connec 

